Sectional post for binders.



No. 683,0". Patented sept. I7, 190|. J. owss. y SEGTIUNAL PUST FUR ,BINDERS.

'-mppumian med Apr. fao, 1901.)

(No Modal UNITED STATES PATENT OFFICE.

JOHN BOWERS, OF MILNVAKEE, VVISOONSIN, ASSIGNOR TO HENRY C.

MILLER AND JULIUS BAUER, COPARTNERS, OF SAME PLACE.

SECTIONAL POST FOR BINDERS.

SPECIFICATION forming part of Letters Patent No. 683,011, dated September 17, 1901.

Application tiled April 20, 1901. Serial No. 56,697. (No model.)

T0 @ZZ whom t may concern:

Be it known that I, JOI-IN BOWERS, residing at Milwaukee,in the county of Milwaukee and State of Visconsin, have invented a new and useful Improvement in Sectional Posts for Binders, of which the following is a description, reference beinghad to the accompanying drawings, which are a part of this specification.

My invent-ion has relation to improvements in sectional posts for binders, more especially the type of binders known as transferbinders.

In transfer and other forms of binders, in which leaves are detacliably secured between Vthe covers of the binder, posts are employed for holding said leaves detachably, said posts passing through openings formed therefor in the leaves. If no means were provided for extending the lengths of the posts, said posts would of course be only capable of accommodating a certain number of leaves, and hence sectional posts have been provided in order that their lengths may be increased as the thickness of the leaves between the covers require. My invention has relation to this class of sectional posts; and its object is to provide a simple and improved form thereof which shall be inexpensive and at the same time the parts thereof capable of being readily adjusted together or disconnected from each other.

With the above primary object and other incidental objects in View the invention consists of the devices and parts or their equivalents, as hereinafter set forth.

In the accompanying drawings, Figure 1 is a vertical sectional View of a sectional post embodying my invention, the lower end of said post being shown as riveted to the usual metallic piece which fits in the rear bindingstrip of the cover. Fig. 2 isa sectional detail view of one of the tubular sections. Fig. 3 isa detail view of one of the coupling-pieces. Fig. 4 is a detail view of the lower section of the post shown in Fig. l, and Fig. 5 is a detail View of a longer lower post-section with a cap-piece adjusted thereto.

Referring to the drawings, the numeral 6 indicates the lower post-section. (Shown in Figs. l and 4.) The lower end of this section is reduced and nts in an opening therefor in a metallic strip 7, which is incased in the rear binding-piece of the side or cover of the binder, as is usual in devices of this character, the said lower reduced end being shown as riveted to themetallic strip, although, of course, if preferred, the opening in said metallic strip could be threaded and said lower end ofA the post-section provided with exterior threads to engage the threaded opening, and thereby providing for the removal of the lower section. The upper end of said lower post-section is also reduced to form an annular shoulder 8. Adapted to lit around this upper 'reduced end and to rest upon the shoulder S is a tubular post-section 9.

The numeral 10 indicates a tubular coupling-piece provided medially with an exterior annular shoulder 1l. The portion of this coupling below the shoulder 1l is fitted in the upper end of'the tubular section 9, the upper end of said section 9 bearin g against the said shoulder. The portion of this coupling above the shoulder 11 ts in the lower end of another tubular post-section 12, the lower end of said post-section resting on the upper side of the shoulder 11. Fitting in the upper end of the post-section 12 is a similar coupling l0, the shoulder 11 thereof resting on the upper end of the section 12. The lower end of an upper tubular post-section 13 nts around the upper portion of this upper coupling l0, and its lower extremity rests on the shoulder l1.

The several parts described are held together by means of along rod 14, which passes through the tubular sections and fits closely within the bores of the couplings, said couplings thereby forming bearings for the rod. The lower end of the rod is threaded, and this threaded end engages a threaded socket 15 in the lower section 6. The rod near its upper extremity is provided with a circular enlargement 16, which ts closely within the bore of the upper tubular post-section 13, and thereby forms a bearing'at that point. The upper 'extremity of the rod is provided with a head 17, which bears against the upper end of the upper tubular post-section, and thereby firmly binds all the several parts together. This head is advisably provided with a niche IOO for the insertion of a screwdriver, so as to adapt the lower end of the rod to be readily screwed into or out of the threaded socket l5. As is well understood by those familiar with this class of devices, the upper ends of the posts pass freely through openings in the rear binding-piece of the other cover or side of the binder, (not shown,) and a metallic piece similar to 7 is incased in said rear binding-piece, the said strip having openings therethrough for the passage of the posts, whereby the upper cover of the binder is permitted to be brought down on top of the series of leaves inclosed between the covers.

In the accompanying drawings I have shown a post built up of three of the tubular post-sections and two of the couplings. It is obvious, however, thata greater or less number maybe employed, if desired, the only requirement being that a series of rods Il be provided of varying lengths, so as to be adapted to' the different lengths of the posts. lf only one tubular post-section is used, then the coupling 10 is omitted altogether and a very short rod 14 employed, the head 17 of said rod resting on the top of the section 9. If only two tubular sections are employed, then only one coupling 10 is required, the said coupling being disposed between the upper end of section 9 and the lower end of section l2. The rod in that case is of such length that its head 17' will rest on top of the tubular section l2. It more than three tubular sections are employed, then another coupling lO is fitted to the upper end of the tube-sec-v tion I3 and to the lower end of another tubesection, and a rod 14: is employed of such length that its head 17 will fit against the upper end of the uppermost tube-section.

Some users may prefer to have the device equipped in the irst instance with a lower post-section of greater length than the postsection (5. (Shown in Figs. l and 4c.) In such cases a post-section similar to that shown in Fig. 5 and designated by the numeral 18 may be connected to the metallic strip 7. This post is adapted to be used until the leaves reach the top thereof, and during that time its upper end is nished oft' by a cap 19, fitted thereto and having a depending iiange, the lower end of which rests on the upper shoulder of said post-section.

When the leaves reach the top of the post, the cap is then removed and the height oi' the post built up in a similar manner to the post shown in Fig. l.

From the foregoing description it will be seen that I provide a sectional post which is exceedingly simple in construction and inexpensive ot' production and at the same time one which possesses the greatest rigidity throughout, the several sections being held iirmly together by the rod 14, which rod has the threaded bearing at its lower end, the intermediate bearings by reason of its close iit in the bores of the couplings, and a bearing at its upper end by the engagement of the enlargement 16 with the bore of the upper tubular post-section.

While the different post-sections and couplings are shown in the accompanying drawings as of cylindrical form, yet it is not intended that these parts should be restricted to that particular formation, inasmuch as the same could be made square, rectangular, or any other desired form in cross-section.

What I claim as my invention is- In a sectional post for loose-leat` binders, the combination of a base-section provided with a threaded socket and also provided with a shoulder, a plurality of tubular post-sections, the lower end of the lower tubular postsection fitting the upper end of the basessection and against the shoulder thereof, a tubular coupling-piece fitting within the adjacent ends of two ofthe tubular post-sections, said coupling-piece provided with an external shoulder against which the said adj acentends of the tubular post-sections bear, the outer surface of the shoulder being flush with the outer surfaces of the tubular post-sections and a rod passing through the tubular postsections and fitting closely in the bore of the coupling, the lower end of said rod having a threaded connection with the socket of the base-section, and the opposite end of said rod provided with a head iitting against the upper end of the upper tubular post-section.

In testimony whereof I ai'lix my signature in presence of two witnesses.

JOHN BOWERS.

Witnesses:

A. L. MoRsELL, ANNA V. FAUsT. 

